Detectors

Every Cortex detection rule the toolbox knows about — analytics alerts, BIOCs and correlation rules — in one filterable set.

367 detectors match the current filters.

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Type Name Severity Module Data source / event ATT&CK
BIOC Impersonation using Rubeus tool User authentication should not be impersonated, since this is considered a malicious behavior. Medium Platform Analytics Process execution Defense Evasion
BIOC Injection into ping.exe A process injected into an instance of ping.exe. Informational Platform Analytics Remote code Defense Evasion
BIOC Installation of Cain & Abel password recovery tool A process created a Registry key associated with the common password cracking tool Cain & Abel. Low Platform Analytics Registry Credential Access
BIOC Installation of networking security tools A security or penetration testing tool such as wireshark and nmap is being installed. Informational Platform Analytics Process execution Discovery
BIOC Interface enumeration using netsh Attackers may enumerate existing network interfaces using netsh.exe. Informational Platform Analytics Process execution Discovery
BIOC Internet Explorer home page modification The Internet Explorer home page could be changed to a malicious page. Low Platform Analytics Registry Impact, Credential Access
BIOC Internet Explorer security settings modification The Security Settings Check feature, which checks Internet Explorer security settings to determine risk, was disabled. Informational Platform Analytics Registry Defense Evasion
BIOC ISO mounted manually A user manually mounted an ISO file. Informational Platform Analytics File Defense Evasion
BIOC Kerberos brute-force attack using Kerbrute This is a known Kerbrute tool command, used to conduct Kerberos authentication brute-force attacks. Informational Platform Analytics Process execution Credential Access
BIOC Kerberos service ticket request in PowerShell command Asking for a specific Kerberos service ticket can indicate an attacker's attempt to "Kerberoast" or use the ticket directly. High Platform Analytics Process execution Credential Access, Lateral Movement
BIOC Kerberos ticket forging using Impacket ticketer Suspected execution of Impacket's ticketer.py script for forging TGT/TGS Kerberos tickets. Medium Platform Analytics Process execution Defense Evasion, Privilege Escalation
BIOC Kernel modules loaded via command-line tool The insmod/depmod command loads a kernel module; attackers may use kernel modules as rootkits. Informational Platform Analytics Process execution Persistence
BIOC Kernel modules loaded via compiled loader and .ko file Instead of using insmod/depmod, an attacker can build a loader and load a kernel module; attackers may use kernel modules as rootkits. Informational Platform Analytics Process execution Persistence
BIOC Key Certificate Search And Exfiltrate Possible attempt to search for key certificates and exfiltrate them. Informational Platform Analytics Process execution Credential Access
BIOC Keychain Certificate Access Detected access to Keychain certificates. Informational Platform Analytics Process execution Credential Access
BIOC Keychain Import Item An item was imported from the Keychain. Informational Platform Analytics Process execution Credential Access
BIOC Keychain Unlock Detected Keychain unlocking. Informational Platform Analytics Process execution Credential Access
BIOC Linux network share discovery A Linux network share discovery command was executed. Informational Platform Analytics Process execution Discovery
BIOC Log deletion in known log file directories Deletion of log files in known log directories. Informational Platform Analytics File Defense Evasion
BIOC Log deletion using the truncate command Usage of the truncate utility using "-s 0" argument to clear log files. Informational Platform Analytics Process execution Defense Evasion
BIOC Log deletion via command-line tool An attacker may use the rm command to remove traces of their activities. Informational Platform Analytics Process execution Defense Evasion
BIOC LOLBAS reading a Windows credential manager file Encrypted files under the path AppData\Roaming\Microsoft\Credentials are associated with saved passwords in the Windows system. Informational Platform Analytics File Credential Access
BIOC MacOS firewall manipulation An attacker may modify a firewall via command line to bypass network controls. Informational Platform Analytics Process execution Defense Evasion
BIOC Malicious NetSetupSvc.dll loaded into svchost.exe A module tied to SolarStorm (TEARDROP NetSetupSvc.dll) was loaded from a malicious location into svchost.exe. Informational Platform Analytics Module Execution
BIOC Manipulation of 'BootExecute' Registry run key Smss.exe will launch anything present in the BootExecute Registry key under HKLM\SYSTEM\ControlSet002\Control\Session Manager. The BootExecute key should only contain "autocheck autochk*". If there are additional values in it, they are probably used for malware persistence. Informational Platform Analytics Registry Persistence
BIOC Manipulation of AppInit DLL loading list The AppInit DLLs Registry key contains a list of DLLs that will be loaded when user32.dll is loaded. As most Windows executables use the user32.dll, any DLL that is listed in the AppInit_DLLs Registry key will be loaded also. The user32.dll file is also used by processes that are automatically started by the system when you log on. Informational Platform Analytics Registry Persistence
BIOC Manipulation of Application Verifier custom providers The Application Verifier assists developers in quickly finding subtle programming errors that can be extremely difficult to identify with normal application testing. Using Application Verifier in Visual Studio makes it easier to create reliable applications by identifying errors caused by heap corruption, incorrect handle and critical section usage. Changing the providers could change handling. An attacker can use this ability to inject a custom verifier into any application. Once the custom verifier has been injected, the attacker now has full control over the application. Informational Platform Analytics Registry Persistence
BIOC Manipulation of autostart related system files May be used as a malware persistence technique, as these files have relevancy to the startup routine of Windows. Informational Platform Analytics File Persistence
BIOC Manipulation of Crypto Subject Interface Package (SIP) Provider Malicious modification of crypto subject interface package (SIP) provider Registry keys can be leveraged to trick the OS into incorrectly validating invalid signing certificates. May have legitimate uses, but check for malicious activity. Informational Platform Analytics Registry Defense Evasion
BIOC Manipulation of default file association configuration When a file is opened, the default program used to open the file, its handler, is checked. File association selections are stored in the Windows Registry and can be edited by users. Malware can modify or create a file association for a given file extension to call another program when a given extension is opened. Informational Platform Analytics Registry Persistence
BIOC Manipulation of default file extension configuration Alerts when a handler of a known file extension is modified. Applicable to EXE, DLL, SYS, PS1, BAT, CMD, ZIP and LNK extensions. Low Platform Analytics Registry Persistence
BIOC Manipulation of Firefox plugins and extensions via the Registry Plugins and extensions are loaded from all of these Registry keys. Medium Platform Analytics Registry Persistence
BIOC Manipulation of MMC Registry configuration Creation or modification of these Microsoft Management Console related entries can cause the execution of the specified programs, bypassing UAC. Informational Platform Analytics Registry Privilege Escalation
BIOC Manipulation of permissions for the Application Event Log Removing read/write permissions from this key may result in errors in the Application event log, and may cause certain VSS diagnostic tools to not function correctly. https://technet.microsoft.com/en-us/library/cc734219(v=ws.10).aspx. Informational Platform Analytics Registry Impact
BIOC Manipulation of RDP settings Possible modification of Terminal Services/RDP settings. Informational Platform Analytics Registry Lateral Movement
BIOC Manipulation of service imagepath configuration This key specifies the location of the executable file for the driver or service. Malicious executables might be installed in these paths. Informational Platform Analytics Registry Persistence
BIOC Manipulation of the MonitorProcess Registry key Entries added under the Registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SilentProcessExit can be used to run malicious code and help attackers gain persistence. Medium Platform Analytics Registry Persistence
BIOC Manipulation of the sticky keys file Possible login bypass attack. Medium Platform Analytics File Privilege Escalation
BIOC Manipulation of Volume Shadow Copy configuration Modifying this key might remove VSS privileges from user accounts, possibly disabling Volume Shadow Copy. Informational Platform Analytics Registry Impact
BIOC Manipulation of Windows Defender configuration Commands used to bypass, disable or harm Windows Defender. Informational Platform Analytics Process execution Defense Evasion
BIOC Manipulation of Windows DNS configuration using WMIC This command can be leveraged by attackers to change the way DNS requests are sent, bypassing the corporate DNS servers. Low Platform Analytics Process execution Execution
BIOC Manipulation of Windows Event Log auto-backup via Registry This key enables/disables the automatic backups of event logs when they are full. Informational Platform Analytics Registry Defense Evasion
BIOC Manipulation of Windows Safe Boot configuration Safe-boot Registry settings deletion. Medium Platform Analytics Registry Impact
BIOC Manipulation of Winlogon 'Notify' autostart Registry key Since Winlogon handles the Secure Attention Sequence (SAS) (Ctrl+Alt+Del), notify subkeys found at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify are used to notify event handles when SAS happens and load a DLL. This DLL can be edited to launch whenever such a SAS event occurs. Informational Platform Analytics Registry Persistence
BIOC Manipulation of Winlogon 'UserInit' autostart Registry key Winlogon process uses the value specified in the UserInit key to launch login scripts etc. This key is location at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon. Usually, UserInit key points to userinit.exe but if this key can be altered, then that EXE will also launch by Winlogon. Medium Platform Analytics Registry Persistence
BIOC Microsoft Connection Manager Profile Installer loads a file from the users to temporary folder The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program used to install Connection Manager service profiles. CMSTP.exe may be abused to load and execute DLLs and/or COM scriptlets (SCT) from remote servers. This execution may also bypass AppLocker and other whitelisting defenses since CMSTP.exe is a legitimate, signed Microsoft application. Low Platform Analytics Process execution Defense Evasion
BIOC Microsoft Connection Manager Profile Installer makes connections to the network The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program used to install Connection Manager service profiles. CMSTP.exe may be abused to load and execute DLLs and/or COM scriptlets (SCT) from remote servers. This execution may also bypass AppLocker and other whitelisting defenses since CMSTP.exe is a legitimate, signed Microsoft application. Low Platform Analytics Network Defense Evasion
BIOC Microsoft Connection Manager Profile Installer runs command line or PowerShell The Microsoft Connection Manager Profile Installer (CMSTP.exe) is a command-line program used to install Connection Manager service profiles. CMSTP.exe may be abused to load and execute DLLs and/or COM scriptlets (SCT) from remote servers. This execution may also bypass AppLocker and other whitelisting defenses since CMSTP.exe is a legitimate, signed Microsoft application. Low Platform Analytics Process execution Defense Evasion
BIOC Microsoft HTML Application Host spawns from CMD or PowerShell Microsoft HTML Application Host is a program whose source code consists of HTML, Dynamic HTML and a few scripting languages compatible with Internet Explorer such as VBScript or JScript. It does not typically spawn from PowerShell or CMD. Informational Platform Analytics Process execution Defense Evasion
BIOC Microsoft HTML Application Host spawns from Explorer.exe Mshta allows execution of .hta files, an attacker can use mshta to execute malicious hta files on the victim's host. Informational Platform Analytics Process execution Defense Evasion
BIOC Microsoft Office Equation Editor spawns a commonly abused process A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. CVE-2017-11882 Microsoft Office Memory Corruption Vulnerability. Medium Platform Analytics Process execution Execution
BIOC Microsoft Office executes an unsigned process in a suspicious directory Microsoft Office executed an unsigned process in a suspicious directory. This behavior is common with malicious macros. Informational Platform Analytics Process execution Execution
BIOC Microsoft Office process spawns a commonly abused process Common weaponized office document behavior. Informational Platform Analytics Process execution Execution
BIOC Microsoft Office process spawns an unsigned process Common weaponized office document behavior. Informational Platform Analytics Process execution Execution
BIOC Microsoft Office spawns curl/wget on a macOS device Microsoft Office Word/Excel/PowerPoint/Outlook spawn wget/curl on a macOS device. Informational Platform Analytics Process execution Exfiltration
BIOC Modification of default Windows startup path via Registry An attacker may modify the startup path to the location of the malware. Informational Platform Analytics Registry Persistence
BIOC Modification of logon scripts via Registry Windows logon scripts are stored in ``HKCU\Environment\UserInitMprLogonScript`` and trigger when a user logs in. Attackers may abuse them for persistence. Medium Platform Analytics Registry Persistence
BIOC Modification of systemd service files An attacker may create or modify systemd service unit files to establish persistence between reboots. Informational Platform Analytics File Persistence
BIOC Modification of the Winlogon\Shell Registry key Malware may modify the Winlogon\Shell Registry value to load itself instead of explorer.exe, which is the default system shell. Informational Platform Analytics Registry Persistence
BIOC Modification of Windows boot configuration using bcdedit.exe BCDEdit is a Microsoft Windows utility that can modify boot parameters. It is usually used as part of an attack to prevent repair of the affected system by disabling booting in recovery mode. It can also be used to stop Windows' Patchguard from objecting to the unsigned and insecure nature of a driver being loaded. Informational Platform Analytics Process execution Defense Evasion, Impact
BIOC Modifying ELF file capabilities via setcap An attacker may attempt to gain privileges by setting the capabilities of a file. Informational Platform Analytics Process execution Privilege Escalation
BIOC Mounted NFS share discovery Attackers may use the showmount command to list mount Network File Sharing shares. Informational Platform Analytics Process execution Discovery
BIOC MSBuild execution Attackers may use MSBuild.exe to proxy execution of code through a trusted Windows utility. Informational Platform Analytics Process execution Defense Evasion
BIOC Multiple RDP sessions enabled via Registry Attackers may allow multiple RDP sessions, so they could access the machine at the same time the user does. Medium Platform Analytics Registry Persistence, Lateral Movement
BIOC Nagios enumeration A Nagios XI database may be enumerated for the credentials of the hosts monitored. Low Platform Analytics Process execution Credential Access
BIOC Netcat shell via named pipe Attackers may create a Netcat shell using a named pipe to remotely access the endpoint. Informational Platform Analytics Process execution Execution
BIOC Netrc file enumeration Enumeration commands such as test and cat were executed on .netrc file paths that contain credentials. Informational Platform Analytics Process execution Credential Access
BIOC Netsh.exe modifies allowed firewall port/program lists Malware will often modify local firewall settings to permit untrusted software to communicate with the Internet for C2. Check for malicious use. Informational Platform Analytics Process execution Defense Evasion
BIOC Network Packet Capture: tshark/tcpdump Network packet capture using tshark\tcpdump utility. Informational Platform Analytics Process execution Discovery
BIOC Network scanning tool executed This rule looks for the string nmap in the command line, which indicates that the nmap scanning tool is used to scan a network or a machine. Informational Platform Analytics Process execution Discovery
BIOC Network share discovery via command-line tool Attackers may use command-line tools to discover mapped shares on the host. Low Platform Analytics Process execution Discovery
BIOC New certificate added to the trusted root store Untrusted certificates could be used to install untrusted drivers and malicious code. Informational Platform Analytics Process execution Defense Evasion
BIOC New entry added to startup related Registry keys by unsigned process Entries added to the "Run Keys" in the Registry or the startup folder will cause the program to be executed when the user logs in. The program will be executed in the context of the user and will have his permissions level. Informational Platform Analytics Registry Persistence
BIOC New local user created via PowerShell command line Attackers may create new local users to persist access to machines. Medium Platform Analytics Process execution Persistence
BIOC New service created via command line Attackers may leverage services to gain persistence on an endpoint. Informational Platform Analytics Process execution Persistence
BIOC Non-browser process downloads content from GitHub Check for possible attempts to use GitHub as a malicious payload deployment mechanism. This technique is known to be used frequently by threat actors to serve malicious scripts/payloads. Informational Platform Analytics Network Command and Control
BIOC Notepad process makes a network connection Notepad.exe processes should not normally make network connections (with the occasional exception of printing documents). This can be a possible indicator of exploitation, e.g. Metasploit Meterpreter injection. Low Platform Analytics Network Defense Evasion
BIOC Ntdsutil.exe accessing ntds.dit file Attackers may attempt to dump ntds.dit, which stores all Active Directory account information, to later extract passwords and hashes from it. High Platform Analytics File Credential Access
BIOC NTLM Credential dumping via RpcPing.exe RpcPing.exe can be used to gain network NTLM hash for offline cracking. Medium Platform Analytics Process execution Credential Access
BIOC Office document embeds a .LNK file An Office process spawned a process with an argument indicating that the document contains an embedded .LNK file. Informational Platform Analytics Process execution Initial Access
BIOC Office process spawns verclsid.exe A Microsoft Office process launching verclsid.exe may be a sign of phishing. Informational Platform Analytics Process execution Initial Access
BIOC Office process writes an executable file to disk An executable file was written by a Microsoft Office application to disk. Informational Platform Analytics File Execution
BIOC Out of band testing domain connection Connection from web service process to out-of-band-testing domain. Low Platform Analytics Network Initial Access
BIOC Outlook creates an executable file on disk Common weaponized Office document behavior, as Outlook should not create binary files at all. Informational Platform Analytics File Initial Access
BIOC Password complexity enumeration Attackers may read system files containing password complexity requirements. Informational Platform Analytics Process execution Discovery
BIOC Password policy discovery via command-line tool Attackers may use chage to list the password policy and the user's last access time. Informational Platform Analytics Process execution Discovery
BIOC Password-related Mozilla files were read by a non-Mozilla process Adversaries may acquire credentials from web browsers by reading files specific to the target browser. Informational Platform Analytics File Credential Access
BIOC Perl script connecting to network Perl scripts may be used by attackers to connect to their command-and-control infrastructure. Medium Platform Analytics Process execution Execution
BIOC Permission groups discovery via ldapsearch Attackers may use the ldapsearch command-line tool to gather information about domain groups and their permissions. Informational Platform Analytics Process execution Discovery
BIOC Permissive file privileges were granted Setting readable, writable, and executable permissions for all users may pose a major security risk. Informational Platform Analytics Process execution Defense Evasion
BIOC Persistence through service registration An attacker may add or modify system services to persist on a host. Informational Platform Analytics File Persistence
BIOC Persistence using bashrc files Possible persistency using shell (bash\csh) profile files. Commands in ~/.bashrc are executed on every new shell execution. Informational Platform Analytics File Persistence
BIOC Persistence using cron jobs Cron jobs are tasks to be executed sometime in the future, and could be used to persist malware. Informational Platform Analytics File Persistence
BIOC Persistence via Registry screensaver key change Attackers may install their malware persistently by modifying the value of the screensaver Registry key. Informational Platform Analytics Registry Persistence
BIOC Ping executed with loopback address This seemingly strange "wait" mechanism is often used by malware to stall command execution. Informational Platform Analytics Process execution Defense Evasion
BIOC Ping to a known external IP address Pinging a known external IP address is often used by malware to check internet connectivity. Informational Platform Analytics Process execution Defense Evasion
BIOC Plink/SSH reverse tunnel PuTTY link (Plink) / SSH can be used to create encrypted tunnels to communicate back to an attacker's C2 server. Low Platform Analytics Process execution Command and Control
BIOC Pluggable Authentication Modules Access Access to Pluggable Authentication Modules. Informational Platform Analytics Process execution Credential Access
BIOC Pluggable Authentication Modules Modification Modification of Pluggable Authentication Modules. Informational Platform Analytics File Credential Access
BIOC Port Monitor added in Registry Adversaries may use port monitors to run an adversary-supplied DLL during system boot for persistence or privilege escalation. Low Platform Analytics Registry Persistence